A BITS client resets the TCP connection every time that it finishes downloading a range of the file in Windows 7 or in Windows Server 2008 R2

Article ID: 2654875 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario. You use Background Intelligent Transfer Service (BITS) to download files on a computer that is running Windows 7 or Windows Server 2008 R2. You enable Kerberos authentication. In this scenario, the BITS client resets the TCP connection every time that it finishes downloading a range of the file. This behavior causes the total network traffic to increase.

RESOLUTION

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running one of the following operating systems:
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply this hotfix, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 7 and Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.1.7600.21xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.7601.21xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7 and for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTime
Webio.dll6.1.7600.21108314,88016-Dec-201107:51
Webio.dll6.1.7601.21878315,39216-Dec-201109:00
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Webio.dll6.1.7600.21108396,28816-Dec-201108:41x64
Webio.dll6.1.7601.21878396,28816-Dec-201108:39x64
Webio.dll6.1.7600.21108314,88016-Dec-201107:51x86
Webio.dll6.1.7601.21878315,39216-Dec-201109:00x86
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Webio.dll6.1.7600.21108691,71216-Dec-201107:37IA-64
Webio.dll6.1.7601.21878692,22416-Dec-201107:33IA-64
Webio.dll6.1.7600.21108314,88016-Dec-201107:51x86
Webio.dll6.1.7601.21878315,39216-Dec-201109:00x86

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about Background Intelligent Transfer Service (BITS), visit the following Microsoft websites:
General information about BITS
More detailed information about BITS
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameX86_87f75ac12a446ceb6b99a2ca4af76a36_31bf3856ad364e35_6.1.7601.21878_none_13c66f82a02979e0.manifest
File versionNot applicable
File size693
Date (UTC)16-Dec-2011
Time (UTC)19:50
File nameX86_96ba8bf47d0737c5105f4f5bedb0768b_31bf3856ad364e35_6.1.7600.21108_none_01e454b9c8b421f0.manifest
File versionNot applicable
File size693
Date (UTC)16-Dec-2011
Time (UTC)19:50
File nameX86_microsoft-windows-webio_31bf3856ad364e35_6.1.7600.21108_none_5da390d058e0fe60.manifest
File versionNot applicable
File size2,484
Date (UTC)16-Dec-2011
Time (UTC)09:32
File nameX86_microsoft-windows-webio_31bf3856ad364e35_6.1.7601.21878_none_5f3e6640563ffaa1.manifest
File versionNot applicable
File size2,484
Date (UTC)16-Dec-2011
Time (UTC)09:26
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_437d7e4598301a23da920e42406616e0_31bf3856ad364e35_6.1.7600.21108_none_65234735d8ea11be.manifest
File versionNot applicable
File size697
Date (UTC)16-Dec-2011
Time (UTC)19:50
File nameAmd64_57a039ee7e17a440b71730eeb49f6391_31bf3856ad364e35_6.1.7600.21108_none_0afb4fe2b245f27d.manifest
File versionNot applicable
File size697
Date (UTC)16-Dec-2011
Time (UTC)19:50
File nameAmd64_92bbda002575b1fcc5ad245bc570fbce_31bf3856ad364e35_6.1.7600.21108_none_3ee3d28aeb93c701.manifest
File versionNot applicable
File size1,036
Date (UTC)16-Dec-2011
Time (UTC)19:50
File nameAmd64_bfc7fbfa102a5bc5f49c7f04a8bd2c4f_31bf3856ad364e35_6.1.7601.21878_none_977331ab075ea243.manifest
File versionNot applicable
File size1,036
Date (UTC)16-Dec-2011
Time (UTC)19:50
File nameAmd64_e7e8bb6fc595a6732a234d1059c888b5_31bf3856ad364e35_6.1.7601.21878_none_2d9098d797a98a75.manifest
File versionNot applicable
File size697
Date (UTC)16-Dec-2011
Time (UTC)19:50
File nameAmd64_eb480e7208f3141609d65808135de8f3_31bf3856ad364e35_6.1.7601.21878_none_b5a158d1802e0697.manifest
File versionNot applicable
File size697
Date (UTC)16-Dec-2011
Time (UTC)19:50
File nameAmd64_microsoft-windows-webio_31bf3856ad364e35_6.1.7600.21108_none_b9c22c54113e6f96.manifest
File versionNot applicable
File size2,488
Date (UTC)16-Dec-2011
Time (UTC)09:09
File nameAmd64_microsoft-windows-webio_31bf3856ad364e35_6.1.7601.21878_none_bb5d01c40e9d6bd7.manifest
File versionNot applicable
File size2,488
Date (UTC)16-Dec-2011
Time (UTC)10:22
File nameWow64_microsoft-windows-webio_31bf3856ad364e35_6.1.7600.21108_none_c416d6a6459f3191.manifest
File versionNot applicable
File size2,486
Date (UTC)16-Dec-2011
Time (UTC)09:23
File nameWow64_microsoft-windows-webio_31bf3856ad364e35_6.1.7601.21878_none_c5b1ac1642fe2dd2.manifest
File versionNot applicable
File size2,486
Date (UTC)16-Dec-2011
Time (UTC)09:15
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_964c407b708fed740166c293887c1b55_31bf3856ad364e35_6.1.7600.21108_none_7ccb47c924849058.manifest
File versionNot applicable
File size1,034
Date (UTC)16-Dec-2011
Time (UTC)19:50
File nameIa64_97f9d6f6755f259e00fbc7fcec05884b_31bf3856ad364e35_6.1.7601.21878_none_b01f0bbdba93879d.manifest
File versionNot applicable
File size1,034
Date (UTC)16-Dec-2011
Time (UTC)19:50
File nameIa64_microsoft-windows-webio_31bf3856ad364e35_6.1.7600.21108_none_5da534c658df075c.manifest
File versionNot applicable
File size2,486
Date (UTC)16-Dec-2011
Time (UTC)09:06
File nameIa64_microsoft-windows-webio_31bf3856ad364e35_6.1.7601.21878_none_5f400a36563e039d.manifest
File versionNot applicable
File size2,486
Date (UTC)16-Dec-2011
Time (UTC)10:16
File nameWow64_microsoft-windows-webio_31bf3856ad364e35_6.1.7600.21108_none_c416d6a6459f3191.manifest
File versionNot applicable
File size2,486
Date (UTC)16-Dec-2011
Time (UTC)09:23
File nameWow64_microsoft-windows-webio_31bf3856ad364e35_6.1.7601.21878_none_c5b1ac1642fe2dd2.manifest
File versionNot applicable
File size2,486
Date (UTC)16-Dec-2011
Time (UTC)09:15
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Properties

Article ID: 2654875 - Last Review: January 27, 2012 - Revision: 1.0
APPLIES TO
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Starter
  • Windows 7 Ultimate
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
  • Windows Web Server 2008 R2
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbexpertiseadvanced kbsurveynew KB2654875

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